Neolithic Clay Tokens
Neolithic clay tokens were made very simply. A small piece of clay was worked into one of about a dozen different shapes, and then perhaps incised with lines or dots or embellished with pellets of clay. These were then sun-dried or baked in a
hearth. The tokens ranged in size from 1–3 centimeters (about 1/3 to one inch), and about 8,000 of them dated between 7500–3000 BCE have been found so far.
The earliest shapes were simple cones, spheres, cylinders, ovoids, disks, and tetrahedrons (pyramids). The premier researcher of clay tokens Denise Schmandt-Besserat argues that these shapes are representations of cups, baskets, and granaries. The cones, spheres and flat disks, she said, represented small, medium and large measures of grain; ovoids were jars of oil; cylinders a sheep or goat; pyramids a person-day of work. She based her interpretations on similarities of the forms to shapes used in the later Mesopotamian written proto-cuneiform language and, while that theory has yet to be confirmed, she may very well be right.
What Were Tokens For?
Scholars believe that clay tokens were used to express numerical quantities of goods. They occur in two sizes (larger and smaller), a difference that may have been used as a means of counting and manipulating quantities. The Mesopotamians, who had a base 60 numbering system, also bundled their numerical notations, so that a group of three, six, or ten signs equated to one sign of a different size or shape.
Possible uses for the tokens are associated with accounting and include trade negotiations between parties, tax collection or assessments by state agencies, inventories, and allotments or disbursements as payment for services rendered.
Tokens were not tied to a particular language. No matter what language you spoke, if both parties understood that a cone meant a measure of grain, the transaction could take place. Whatever they were used for, the same dozen or so token shapes were used for some 4,000 years throughout the Near East.